Systems and methods for extracting precious metal from fouled carbon10/30/14 - 20140318317 - A system for ashing carbon includes a vertically oriented burner column having a first end and an opposing end with an interior chamber therebetween. The burner column has an aperture at the first end and a suction port proximal to the second end, the aperture and the suction port in...

Direct reduction of iron (dri) pellet treatments08/28/14 - 20140238194 - An aspect provides a method of treating direct reduced iron (DRI) pellets, by applying a foam to the DRI pellets. The foam may include a foam having an expansion ratio of about 20-40 and a bubble size of about 200 microns or less. The foam may include one or more...

Method for treating waste gases from plants for pig iron production07/24/14 - 20140202285 - A method and a system for treating waste gases (4) from plants (32, 33) for pig iron production, wherein a first sub-stream (51) of the waste gas is subjected to an at least partial conversion of CO into CO2 after the addition of water and/or water vapor (10) and the...

Mixed collector compositions05/29/14 - 20140144290 - Collector compositions and methods for making and using same are provided. The collector can include one or more etheramines and one or more amidoamines. A liquid suspension or slurry comprising one or more particulates can be contacted with the collector to produce a treated mixture. A product can be recovered...

Method, arrangement and pelletising plant08/29/13 - 20130220075 - This invention concerns a method for the oxidation and sintering of pellets 1 arranged in a compartment 2 in which the oxidation and sintering take place with the aid of a medium with a defined temperature, which medium heats the pellets 1. The method comprises the introduction of a first...

Method, arrangement, and pelletising plant08/29/13 - 20130220076 - This invention concerns a method for the heating of a medium in a compartment 1 in which pellets 2 are arranged to be oxidised and sintered with the aid of the hot medium. The method comprises the introduction of a first medium 3 into the compartment 1 through an inlet...

Method, arrangement, and pelletising plant08/15/13 - 20130205949 - This invention concerns a method during the oxidation and sintering of pellets (1) arranged in a compartment (2) in which the sintering takes place with the aid of a medium with a high temperature, which medium heats the pellets (1). The method comprises the introduction of a first medium (3)...

Metal dross confinement unit and associated method05/23/13 - 20130125705 - The present document describes a method and confinement unit for stopping a chemical reaction involving hot metal dross and a gas in the surrounding environment. The method comprises transferring the hot metal dross in a dross pan and placing the dross pan with the metal dross therein in the gastight...

Method and device for processing flue dust02/28/13 - 20130047788 - The method and the device serve to treat the flue dust formed during the production of nonferrous metals. After the addition of sulfur and/or a sulfur compound, the flue dust is heated, and volatile compounds are separated in a downstream offgas treatment unit. The flue dust is heated in an...

Method for inducing a volumetric change in a nanoporous material02/07/13 - 20130032006 - The invention is directed to a method for inducing a surface stress-induced volumetric change in a nanoporous material and to a device for carrying out the method. The method of the invention comprises—accumulating polar molecules onto the surface of the nanoporous material by physical adsorption of the polar molecules from...

Dross cooling system and cooling method08/30/12 - 20120216655 - Embodiments of an aluminum dross cooling head are disclosed. The cooling cooperates with a material container encapsulate dross and reduce thermiting of the dross. In one embodiment, the cooling head also serves as a compression head when forced into the dross by a cooperating dross press assembly....

Method and apparatus for producing carbon iron composite08/16/12 - 20120204678 - Carbon iron composite is produced by feeding a formed product of a carbon-containing substance and an iron-containing substance into a carbonization furnace, carbonizing the formed product in a carbonization zone, blowing a coolant gas into the furnace through a coolant-gas-blowing tuyere disposed in a cooling zone to cool carbon iron...

Gasifier additives for improved refractory life06/21/12 - 20120152058 - Embodiments disclosed herein provide hydrocarbon additives and methods of making and using the same. The additives are suitable for use in conjunction with gasifiers, furnaces, or other high-temperature vessels. The additives may be part of an input stream to a reaction vessel of a hydrocarbon gasifier. The additives may include...

Dry processing method and system for converter slag in copper smelting03/29/12 - 20120073405 - The present invention provides a processing method for converting slag ejected from a converter in a copper smelting process to raw materials for iron manufacture. The processing method is for converter slag containing 1 mass % or more of Cu produced in a copper smelting process. The processing method comprises...

Dross cooling system and cooling method11/24/11 - 20110283833 - Embodiments of an aluminum dross cooling head are disclosed. The cooling cooperates with a material container encapsulate dross and reduce thermiting of the dross. In one embodiment, the cooling head also serves as a compression head when forced into the dross by a cooperating dross press assembly....

Method for operating a blast furnace and blast furnace installation09/01/11 - 20110209576 - A method for operating a blast furnace and a corresponding blast furnace, the method including recovering top gas from the blast furnace, submitting at least a portion of the top gas to a recycling process, and feeding the recycled top gas back into the blast furnace, where the recycling process...

Methods for controlling metal nanostructures morphology03/03/11 - 20110048170 - Described herein are methods of controlling metal nanowire morphologies by adjusting the reaction conditions of a polyol synthesis. In particular, by purging the reaction with an inert gas, batch-to-batch consistency can be achieved....

Silica removal from pregnant leach solutions01/06/11 - 20110000337 - The present invention relates generally to a process for removing dissolved or colloidal silica from a pregnant leach solution (“PLS”). More particularly, an exemplary embodiment of the present invention relates to a process which mixes PLS with an acid source, preferably lean electrolyte, to induce formation of colloidal silica that...

Use of alumina-carbon agglomerates in the carbothermic production of aluminum05/06/10 - 20100107815 - An agglomerate comprising alumina, carbon, and a binder for use in a vapor recovery reactor of a carbothermic alumina reduction furnace is disclosed. A method for using alumina-carbon agglomerates to capture aluminum vapor species and utilize waste heat from off-gases in a vapor recovery reactor to form a recyclable material...

Method for preheating iron agglomerates03/11/10 - 20100058892 - passing the hot gas through the iron agglomerate bed, the gas flow rate being such that the temperature drop of the hot gas occurs over a relatively thin layer in the iron agglomerate bed so that a temperature front moves through the bed in the course of heating....

Process for de-oiling steelmaking sludges and wastewater streams08/06/09 - 20090193934 - The present invention is directed to a process for treating an oily mixture consisting of hydrocarbons, solid particles, and water. The steps of the process include placing the oily mixture into a reactor chamber, purging the reactor chamber with an inert gas, and creating a steam bath within the inert...

Method and apparatus for manufacturing high-purity hydrogen storage alloy mg2ni04/23/09 - 20090100968 - The present invention provides a method and apparatus for manufacturing high-purity hydrogen storage alloy Mg2Ni applicable to industry and capable of manufacturing continuously. First, raw materials of magnesium-nickel with weight percentage of nickel between 23.5 and 50.2 are heated, melt, and mixed uniformly. Cool the magnesium-nickel liquid and control the...

Porous bodies and methods02/05/09 - 20090031855 - Systems and methods for treating a fluid with a body are disclosed. Various aspects involve treating a fluid with a porous body. In select embodiments, a body comprises ash particles, and the ash particles used to form the body may be selected based on their providing one or more desired...